71results about "Pilot flame igniters" patented technology

The invention discloses a plasma generator and a traditional Chinese medicine disinsection device thereof, and belongs to the technical field of plasma. The plasma generator comprises a base, a first electrode, a second electrode and a heat preservation pipe. The core of the device is that high-concentration mixed gas is ionized into plasma'kindling 'through discharge of the central electrode and the tubular electrode, and the'kindling' ignites extremely rarefied mixed gas, so that stable and low-consumption combustion is realized. The disinsection device integrates the generator, an air path system and a transmission and air injection device, and the high-temperature air flow generated by the generator is used for carrying out double-sided uniform injection on the medicinal materials subjected to transmission and turn-over treatment, so that worm eggs are effectively killed at instantaneous high temperature, and no medicine residues exist. The device has the advantages of high efficiency, safety and energy conservation.

The invention relates to the field of oil field ignition intelligent control, in particular to an oil field ignition intelligent control system and method based on multi-source data, and the method comprises the steps: a multi-source data collection module collects the multi-source data, and stores the multi-source data in an oil field ignition database; the ignition condition analysis module calls data in an oil field ignition database, a training model generates a control strategy including gas supply, ignition energy and combustion-supporting air proportion, and the control strategy is stored in an ignition scheme library according to scenes; an ignition scheme generation module calls an ignition scheme library, screens out an adaptive ignition scheme, and marks the priority of the scheme; the ignition execution scheduling module displays the matched ignition scheme to an on-site operator to ensure the standardization of the ignition operation; according to the method, four types of multi-source data are integrated, accurate data support is provided for the whole oil field ignition process, the problem of extensive strategies caused by scattered data in traditional ignition is effectively solved, and therefore the safety and energy efficiency of ignition operation are improved.

A pilot unit for an abatement apparatus and a method are disclosed. The pilot unit is for an abatement apparatus configured to abate an effluent stream from a semiconductor processing tool, the pilot unit comprises: a housing retaining a foraminous pilot surface, the housing and foraminous pilot surface defining a plenum which is configured to convey fuel and oxidant from a corresponding housing inlet and through that foraminous pilot surface; and an ignitor configured to ignite the fuel and oxidant when exiting the foraminous pilot surface. In this way, rather than having an ignition flame combusting from a nozzle, an ignition flame is provided across the foraminous pilot surface which provides for a more reliable ignition source for the abatement apparatus.

A torch igniter for a combustor of a gas turbine engine, the torch igniter comprising a housing (23) defining a combustion chamber (22), an ignition source (20) disposed at least partially in the combustion chamber, a fuel injector (40) configured to inject a first fluid into the combustion chamber to impinge on the ignition source, a first fluid channel connected to the fuel injector, an aperture extending at least partially through the housing and configured to inject a second fluid into the combustion chamber to impinge on the ignition source and a second fluid channel connected to the aperture.

Systems and devices for igniting a gas to be flared include: a body having an inlet and an outlet, the body defining a channel extending between the inlet and the outlet; an igniter operable to generate a spark at the outlet of the body; an actuator disposed in the channel, the actuator configured to harvest energy when the gas to be flared flows from the inlet to the outlet through the channel and transfer the energy to the igniter.

Methods and apparatus for indicating the presence of a flame are disclosed. An example gas grill includes: a burner tube having an aperture for discharging fuel for combustion; an ignition element for causing ignition of the fuel discharged from the aperture of the burner tube; a flame sensor for detecting the presence of a flame associated with the combustion of the fuel discharged from the aperture of the burner tube; and a flame sensing circuit including a flame signal accessor for accessing a flame sensing signal from the flame sensor, and a terminal for outputting an indication of the presence of a flame, the indication of the presence of a flame being output regardless of an open state or a closed state of a lid of the grill.

The invention discloses an automatic ignition method and system applied to a hot-metal ladle scrap steel baking device, and belongs to the technical field of steel smelting, and the automatic ignition method comprises the steps that a power source of the hot-metal ladle scrap steel baking device is started; power is supplied based on a power source of the hot-metal ladle scrap steel baking device, and a low-pressure baking-hot rod arranged in the hot-metal ladle scrap steel baking device is preheated by igniting a high-temperature-resistant cable; when preheating of the low-pressure baking-hot rod is completed and a preset ignition condition is met, a fuel gas supply mechanism and a compressed air mechanism of the hot-metal ladle scrap steel baking device are triggered to convey fuel gas and compressed air to an ignition area correspondingly, and combustible mixed gas is formed; and high-pressure sparks generated by the ignition burner act on the surface of the low-pressure searing rod to ignite the combustible mixed gas, so that automatic ignition of the hot-metal ladle scrap steel baking device is realized. Rapid and uniform heating is achieved, energy consumption caused by long open fire is reduced, the baking efficiency is improved, field manual operation is reduced, the operation risk is reduced, and the safety of overall operation is improved.

To provide a hydrogen combustion boiler that reduces a heat loss due to purging inside a furnace and has high responsiveness to load demands.SOLUTION: A hydrogen combustion boiler comprises: a boiler body; a blower; a burner having a main burner and a pilot burner; a hydrogen supply line that supplies a hydrogen-based fuel gas containing at least 50% hydrogen to the main burner; a first shut-off valve that opens and closes the flow path of the hydrogen-based fuel gas; an inert gas supply line connected to the hydrogen supply line; a second shut-off valve that opens and closes the flow path of an inert gas; a fuel supply line for the pilot burner; a third shut-off valve that opens and closes the flow path of a fuel for the pilot burner; an air supply line that supplies air to the burner; and a control unit. The control unit has a combustion control unit that controls combustion of the main burner and the pilot burner, and after opening the third shut-off valve to start combustion of the pilot burner, the combustion control unit closes the first shut-off valve and opens the second shut-off valve, thereby performing inert gas purging control on the hydrogen supply line.SELECTED DRAWING: Figure 2

A vaporizer of a multi-flame igniter comprises an air-mixing tube (1), a first connecting seat (2) and a plurality of injection heads (4), wherein a mounting recess with an opening at the upper end is formed on the first connecting seat (2); the air-mixing tube (1) is fixed to the first connecting seat (2); a vent hole (21) communicating the air-mixing tube (1) with the mounting recess is provided in the bottom of the mounting recess; a main air outlet (41) and a plurality of auxiliary air outlets (42) are provided in each of the injection heads (4); the plurality of injection heads (4) are directly or indirectly mounted in the mounting recess of the first connecting seat (2); and after the injection heads (4) are mounted in place, an air passage gap, which communicates the vent hole (21) with the main air outlets (41) and the auxiliary air outlets (42) of the plurality of injection heads (4), is formed between the bottoms of the injection heads (4) and the bottom of the mounting recess.

The present invention discloses a combustion head of a low-nitrogen burner, which solves the problems of insufficient air mixing in the prior art. A mixing channel for mixing gas and air is provided in the cylinder, and the mixing channel is respectively connected to the gas inlet and the air inlet. The gas inlet and the air inlet are located at one end of the cylinder, and the air outlet is located at the other end of the cylinder. A plurality of acute-angled ventilation holes are opened on the flame stabilizing disk along the circumference in the same clockwise direction. The plurality of acute-angled ventilation holes are arranged in multiple rings from the inside to the outside around the center of the flame stabilizing disk. The hole area of ​​the acute-angled ventilation holes gradually decreases from the air inlet side to the air outlet side. The two sides of the longitudinal section at the location of the acute-angled ventilation holes form an acute angle. The exhausted air and gas are mixed, moved and rotated together from the inside to the outside, which is conducive to stirring the gas and air, so that the two are mixed more fully, the combustion efficiency is improved, the emission of nitrogen oxides is reduced, the energy-saving and environmental protection effects are more enhanced, and the temperature rises more quickly.

A pilot burner assembly includes a grounded conduit defining one or more first fluid inlets for receiving a first fluid, and a main outlet. The assembly further includes a conductive conduit extending within the grounded conduit such that an annular chamber is formed therebetween, the conductive conduit defining a second fluid inlet for receiving a second fluid, and one or more second fluid outlets for discharging the second fluid into the annular chamber such that the first and second fluids mix in the annular chamber to form a combustible mixture. Moreover, the assembly includes an igniter tip electrically connected to the conductive conduit and arranged adjacent to the one or more second fluid outlets, wherein the igniter tip is spaced from the grounded conduit such that an electrical current applied to the igniter tip generates a spark between the igniter tip and the grounded conduit for igniting the combustible mixture.

The continuous ignition control system for the boiler comprises a main air pipeline, an ignition air pipeline, a main fuel gas pipeline and an ignition fuel gas pipeline, the air inlet end of the ignition air pipeline is connected with an ignition air source, the air outlet end of the ignition air pipeline communicates with an ignition burner of the boiler, and the main fuel gas pipeline is connected with the ignition fuel gas pipeline. The frequency converter of the ignition air source is in communication connection with a controller of the boiler, so that the controller can adjust the air supply frequency of the ignition air source according to the operation state of the boiler; the gas inlet end of the ignition gas pipeline is communicated with a gas supply source, and the gas outlet end of the ignition gas pipeline is communicated to an ignition burner of the boiler; a pressure equalizing valve is connected between the ignition air pipeline and the ignition fuel gas pipeline, the output flow of ignition fuel gas is automatically adjusted through the pressure change of ignition air, and it is guaranteed that continuous ignition flames of the boiler can maintain normal combustion under the working conditions of different output heat powers.

The utility model relates to a hearth high-energy ignition device which comprises an electric ignition device, a first spray head and a second spray head, the spraying path of the first spray head is in a straight line shape, the spraying path of the second spray head is in a divergent shape, and the second spray head and the first spray head are arranged in a rotating mode relative to each other. And fuel selectively enters the first spray head or the second spray head through the path switching assembly. By means of angle matching between the first spray head and the second spray head and combination of the rotating effect of the second spray head, during ignition, ignition can be conducted through high-concentration fuel formed at the ignition power position by means of the injection path of the first spray head, then flame diffusion is achieved in the injection and rotating process of the second spray head, and ignition efficiency is improved. Compared with an ignition gun in the prior art, in the whole process, the ignition speed is higher, and the efficiency is higher.

The utility model discloses a telescopic ignition device of a KSD-1 type ladle baking device, which relates to the technical field of steelmaking equipment and comprises a box body, a lifting handle is welded at the top of the box body, and a box door is movably mounted on the back of the box body. According to the utility model, the motor is matched with the driving belt wheel, so that the transmission belt drives the driven belt wheel and simultaneously drives the connecting block to transmit the push rod, and the telescopic rod is enabled to stretch forwards or backwards, so that the ignition head can accurately stretch to the position near a burner, and sparks can directly act on fuel; the ignition failure caused by improper ignition distance is avoided, the ignition success rate is improved, the position of the igniter can be adjusted through cooperation of the telescopic rod and the igniter, the electric wire is fixed through the fixing plate, meanwhile, the electric wire is matched with the power source and the button to enable the igniter to ignite, manual ignition operation is reduced, and the ignition efficiency is improved. The contact opportunities between operators and dangerous factors such as high temperature and fuel gas are reduced, and the safety and convenience of operation are improved.

An apparatus (100) and method for combusting purge gas resulting from an ammonia fuel system (108) that fuels an ammonia-fueled engine (112), the apparatus (100) comprising a burner (104), a fuel inlet (111) configured to supply fuel thereby maintaining a support flame in the burner (104), and a purge gas inlet (121) configured to intermittently receive purge gas from the ammonia-fueled engine (112) and supply the purge gas to the burner (104), the purge gas comprising a mixture of ammonia and an inert gas, the burner (104) comprising a boiler system (102) configured to combust ammonia in the support flame.

A gas burner (1) according to one aspect of the present invention includes a fuel supply pipe (10) extending in a predetermined combustion air jet direction and supplied with fuel gas, an air jet port (40) arranged around the fuel supply pipe (10) and jetting combustion air in the combustion air jet direction, and multiple outflow nozzles (70) extending so as not to protrude outward from the fuel supply pipe (10) beyond the air jet port (40) and so as to form an acute inclination angle with respect to the combustion air jet direction and having tip ends forming fuel outlet ports (71) through which the fuel gas flows out.

The invention discloses an automatic ignition method and system applied to a hot-metal ladle scrap steel baking device, and belongs to the technical field of steel smelting, and the automatic ignition method comprises the steps that a power source of the hot-metal ladle scrap steel baking device is started; power is supplied based on a power source of the hot-metal ladle scrap steel baking device, and a low-pressure baking-hot rod arranged in the hot-metal ladle scrap steel baking device is preheated by igniting a high-temperature-resistant cable; when preheating of the low-pressure baking-hot rod is completed and a preset ignition condition is met, a fuel gas supply mechanism and a compressed air mechanism of the hot-metal ladle scrap steel baking device are triggered to convey fuel gas and compressed air to an ignition area correspondingly, and combustible mixed gas is formed; and high-pressure sparks generated by the ignition burner act on the surface of the low-pressure searing rod to ignite the combustible mixed gas, so that automatic ignition of the hot-metal ladle scrap steel baking device is realized. Rapid and uniform heating is achieved, energy consumption caused by long open fire is reduced, the baking efficiency is improved, field manual operation is reduced, the operation risk is reduced, and the safety of overall operation is improved.

The utility model discloses a normal open fire igniter for stabilizing flame of a large-scale burner, which comprises a carbon steel pipe, a connecting pipe is arranged in the carbon steel pipe, a rotational flow head is fixedly arranged on one side of the surface of the connecting pipe, a plurality of rotational flow grooves are arranged on the periphery of the rotational flow head in a circumferential array shape, and the rotational flow grooves are communicated with the connecting pipe. A swirl groove is formed in the carbon steel pipe, the swirl groove is matched with the swirl head to enable airflow in the carbon steel pipe to move and mix in a spiral shape, a flange plate is arranged on one side of the carbon steel pipe, and one side of the connecting pipe penetrates through the flange plate and extends to the outside of the flange plate. Two gases injected into the pipe body can be fully mixed by the rotational flow head, the two gases can be mutually fused and mixed together by means of the mixing means that the two gases are discharged into the pipe body and can automatically rotate and deflect when passing through the rotational flow groove, then the electrode tip is matched for ignition treatment, and ignited flames can be sprayed out from the outlet.

To provide a curtain frame device which, when using an electric heater to ignite a curtain burner, can reduce the possibility of the curtain frame damaging the electric heater while maintaining the ignition performance of the curtain burner, thereby improving the life of the electric heater. [Solution] A curtain frame device 10 is provided near an opening 93 of a processing chamber 91 in which the workpiece S is processed, and is equipped with a curtain burner 1 that forms the curtain frame and an electric heater 5 for igniting the curtain burner 1, and an ignition hole 15 that communicates with a fuel gas supply pipe 12 for the curtain burner 1 is formed on the furnace-exterior side 11b of the main body 11 of the curtain burner 1, and the electric heater 5 is provided near the ignition hole 15.

The invention relates to the technical field of combustion ignition devices of gas turbine engines using liquid fuel, in particular to a multi-fuel torch igniter with regenerative cooling. The igniter is characterized by comprising an igniter shell, a semiconductor ignition electric nozzle, an oxygen connecting nozzle, a fuel connecting nozzle and a pressure connecting nozzle are arranged on the igniter shell, an igniter combustion chamber is arranged in the igniter shell, and a fuel spraying hole and a liquid collecting cavity are formed in the igniter shell corresponding to the igniter combustion chamber. A regeneration cooling channel is arranged in the wall of the igniter shell; according to the torch igniter, the igniter shell with the regenerative cooling structure is adopted, the fuel temperature is increased while the fuel is used for cooling the igniter shell, oil-gas mixed combustion in the torch igniter is facilitated, and the torch igniter can be repeatedly used for a long time. And the ignition performance of the combustion chamber of the gas turbine engine is improved, so that the gas turbine engine is quickly and reliably ignited and started, and the ignition boundary of the engine is improved.

The application provides a sintering cup experimental device, which comprises a sintering cup, an ignition assembly arranged above the sintering cup and a medium gas tank communicated with the ignition assembly, the ignition assembly comprises an ignition cover communicated with the medium gas tank, an igniter arranged in the ignition cover and a flame guide element arranged in the ignition cover, and the flame guide element comprises a communication area arranged outside the igniter and a flame guide area facing the sintering cup. The sintering cup experimental device provided by the application is provided with the flame guide element in the interior of the ignition cover, the igniter ignites in the communication area of the flame guide element, the flame can be enlarged through the flame guide area, the flame with high temperature in the central part of the whole ignition cover can be uniformly distributed in the interior of the ignition cover through the enlargement of the flame guide area, and the phenomenon that the temperature of the ignition cover is unevenly distributed in the whole plane can be effectively avoided. The temperature is high, the edge effect of sintering can be avoided, and the experimental result is more accurate.

The utility model discloses an internal and external mixing combined combustion burner which comprises a pump shell, a motor is installed on one side of the pump shell, an air door is connected to the front side of the pump shell, a front combustion cylinder is connected to the front side of the air door, a blade disc is installed in the front combustion cylinder, and an incandescent light is installed on the surface of the blade disc. An air port is formed between the incandescent lights, a butt flange is installed at the front end of the front combustion cylinder, and the front combustion cylinder is connected with a rear combustion cylinder through the butt flange; the front combustion cylinder and the rear combustion cylinder are installed in a butt joint mode through the butt joint flange, the incandescent light is installed in the rear combustion cylinder, liquefied petroleum gas is conveyed through the gas conveying pipe, diesel oil is ignited through the incandescent light, the liquefied petroleum gas and air are mixed and combusted in the rear combustion cylinder, and the rear combustion cylinder is located outside. After the incandescent light is lighted, diesel oil and factory air are input into the combustion nozzle which is also arranged on the hot-blast stove, and the diesel oil is lighted through the incandescent light.

PRECOMBUSTION BURNER The invention relates to a burner for an industrial furnace comprising a solid fuel supply (1) suitable for supplying solid fuel to a combustion reaction maintained by the burner, the solid fuel supply (1) comprising: - a first injection assembly (2) extending along a longitudinal axis (X), configured to inject a gaseous fuel and comprising an ejection head (3) at a downstream end of the first injection assembly (2), the ejection head (3) opening at the level of a first annular straight section (S1) normal to the longitudinal axis (X), - a second injection assembly (4) extending along the longitudinal axis (X) and configured to inject a solid fuel transported by a carrier fluid flow, the second injection assembly (4) opening at the level of a second straight section (S2) normal to the longitudinal axis (X) located radially internal to the first straight section (S1).Figure to be published with the abbreviation: Figure 2.

The invention relates to a method for preventing carbon deposition blockage of a gasification ignition oil gun of a power plant boiler. The method comprises the following steps that S1, a buffer body is installed on an oil inlet pipeline between the gasification ignition oil gun and an oil inlet pipeline electromagnetic valve; s2, fuel oil leaked from the oil inlet pipeline electromagnetic valve in the standby state is collected through the buffer body and temporarily stored in a fuel oil temporary storage cavity; and S3, when the gasification ignition oil gun operates, an oil inlet electromagnetic valve and an atomization electromagnetic valve are opened, fuel oil enters the gasification ignition oil gun through the buffer body, and meanwhile compressed air enters the oil gun through an atomization compressed air pipeline. The buffer has the advantages that the buffer body is mounted between the gasification ignition oil gun and the electromagnetic valve of the oil inlet pipeline, so that fuel leaked from the electromagnetic valve in a standby state can be collected, the fuel is prevented from entering the oil gun and being carbonized by high temperature, the problem of carbon deposition blockage of the oil gun is fundamentally solved, and the ignition reliability and the unit operation stability are remarkably improved.

The utility model discloses a kind of boiler plasma ignition device, belong to plasma ignition device technical field, including conveying pipeline, plasma generator, combustion chamber and injection assembly, plasma generator is installed in conveying pipeline one side, injection assembly is installed in the front end of combustion chamber, the rear end of combustion chamber is communicated conveying pipeline, the output end of plasma generator is equipped with thin tube, thin tube inserts into conveying pipeline, fuel particle is conveyed in conveying pipeline, flame gas flow enters into injection pipe, in turn through first cone pipe, second arc pipe and third cone pipe, first through first cone pipe, flame gas flow is compressed, flow rate increases, after passing through second arc pipe, form stable high-speed flame gas flow, then enter third cone pipe, flame gas flow volume increases, flow rate reduces, and impact on regulator, form scattering effect, so that internal insufficient combustion or less contact oxygen fuel particles can be fully combusted, form greater airflow flame.

The utility model discloses an ignition device which comprises an ignition device body, an atomizing nozzle, a high-energy ignition head and a flame guide pipe. The ignition device main body is cylindrical, and an ignition cavity is formed in the ignition device main body; the atomizing nozzle comprises a fuel inlet, a first gas inlet nozzle, a mixing cavity and a first outlet, the fuel inlet and the first gas inlet nozzle communicate with the mixing cavity, and the mixing cavity communicates with one end of the ignition cavity through the first outlet; the other end of the ignition cavity communicates with one end of the flame guiding pipe, and the other end of the flame guiding pipe is provided with a second outlet. The high-energy ignition head is positioned in the ignition cavity and between the first outlet and the flame guide pipe; and a second air inlet nozzle communicated with the ignition cavity is arranged between the first outlet and the high-energy ignition head and on the outer side of the side wall of the ignition device main body. Compared with the prior art, the ignition device can stably and reliably ignite the heater when being used for ignition scenes (such as a supersonic wind tunnel in a low Mach number state) with low temperature and low airflow pressure.

A combustion system includes a fuel and oxidant source, a first perforated flame holder, a second perforated flame holder, and a thermal load. The fuel and oxidant source outputs fuel and oxidant. The first and second perforated flame holders simultaneously or alternately hold combustion reactions of the fuel and oxidant and / or of combustion products. The thermal load receives thermal energy from the first and second combustion reactions.

The utility model discloses an ignition device of an underground cutting torch, which relates to the technical field of underground engineering and comprises an outer shell and an inner shell, one end of the outer shell is connected with a combustion chamber, the other end of the outer shell is connected with an interface of a power supply device, a cutting grain is arranged in the combustion chamber, the outer shell is provided with a nozzle, and the nozzle is communicated with an inner hole of the cutting grain. A plug is arranged in the power supply device interface; a lower plug is arranged at one end of the inner shell, an insulator is arranged at the other end of the inner shell, a containing space capable of being filled with ignition agents is formed in the inner shell, the two electrodes can penetrate through the insulator and stretch into the containing space, a heating element is arranged in the containing space, and the heating element is electrically connected with the electrodes. One end, far away from the accommodating space, of each electrode is electrically connected with a plug, and a foil is arranged on one side, close to the accommodating space, of the lower plug. The ignition device for the underground cutting torch is simple in structure and capable of responding quickly, and ensures that the cutting process is carried out efficiently.